1.zitadel / zitadel
ZITADEL - Identity infrastructure, simplified for you.
+60 stars
from 15,432 · score 4.11
Trending repositories
Ranked by Attention Score: stars gained over the last 7 complete days
9 repositories by Attention Score · Oct 27, 2026 – Nov 2, 2026 (UTC)
2.openfga / openfga
A high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar.
+36 stars
from 6,036 · score 3.61
3.open-policy-agent / opa
Open Policy Agent (OPA) is an open source, general-purpose policy engine.
+17 stars
from 12,402 · score 2.89
4.ory / hydra
Internet-scale OpenID Certified™ OpenID Connect and OAuth2.1 provider that integrates with your user management through headless APIs. Solve OIDC/OAuth2 user cases over night. Consume as a service on Ory Network or self-host. Trusted by OpenAI and many others for scale and security. Written in Go.
+14 stars
from 17,629 · score 2.71
5.authzed / spicedb
Open Source, Google Zanzibar-inspired database for scalably storing and querying fine-grained authorization data
+14 stars
from 7,170 · score 2.71
6.apache / casbin
Apache Casbin: an authorization library that supports access control models like ACL, RBAC, ABAC.
+6 stars
from 20,469 · score 1.95
7.unkeyed / unkey
The Developer Platform for Modern APIs
+5 stars
from 5,477 · score 1.79
8.ory / keto
The most scalable and customizable permission server on the market. Fix your slow or broken permission system with Google's proven "Zanzibar" approach. Supports ACL, RBAC, and more. Written in Go, cloud native, headless, API-first. Available as a service on Ory Network and for self-hosters.
+2 stars
from 5,414 · score 1.10
9.Permify / permify
An open-source authorization as a service inspired by Google Zanzibar, designed to build and manage fine-grained and scalable authorization systems for any application. — Permify is now part of FusionAuth 🎉
+1 stars
from 5,967 · score 0.69